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California vs New Jersey RSU Tax

New Jersey withholds $260 more state tax than California on $50,000 RSU vest (100 shares × $500 FMV) with $150,000 other annual income (flat supplemental method).

By Sammy S. · Founder · AuthorUpdated for 2026

Key finding

New Jersey withholds more state tax

$260 more state tax — net gap ~$260 ($31,021 vs $30,761).

Side-by-side RSU withholding scoreboard

California

$5,115

10.23% state

Total withheld
$18,979
Net RSU
$31,021
Federal + FICA
$13,864
Rank
#4
California profile →

New Jersey

$5,375

~10.75% est. state

Total withheld
$19,239
Net RSU
$30,761
Federal + FICA
$13,864
Rank
#3
New Jersey profile →

Total withholding gap: $260 (state drives most of the difference).

Key takeaways — California vs New Jersey RSU tax

  • New Jersey withholds about $260 more state tax ($5,115 vs $5,375).
  • California: 10.23% (CA DE 44 RSU/stock (10.23%)). New Jersey: ~10.75% est. (Aggregate / table (estimate)).
  • Federal withholding is $11,000 in both states on this vignette (22% flat per IRS Pub. 15); FICA is $2,864 each.
  • California ranks #4; New Jersey ranks #3 (#1 = highest state withholding).
  • Model custom RSU vests at /rsu-tax-calculator.

Rule contrast — California vs New Jersey

TopicCaliforniaNew Jersey
Withholding methodCA DE 44 RSU/stock (10.23%)Aggregate / table (estimate)
Supplemental rate10.23%~10.75% est.
Vignette state tax$5,115$5,375
Vignette federal + FICA$11,000 + $2,864$11,000 + $2,864
Vignette total withheld$18,979$19,239
Vignette net$31,021$30,761
Rank (curated)#4#3

State withholding and net at different RSU sizes

$150,000 other annual income; engine flat supplemental method. State gap is state tax only; net is after-tax share value after sell-to-cover.

RSUCalifornia stateNew Jersey stateState gapCA netNJ net
$15,000$1,534.50$1,612.50$78$9,018$8,940
$50,000$5,115$5,375$260$31,021$30,761
$100,000$10,230$10,750$520$63,731$63,211
$250,000$25,575$26,875$1,300$161,861$160,561

How to read this page

California vs New Jersey RSU tax in 2026

This page compares state supplemental withholding for California (CA) and New Jersey (NJ) on $50,000 RSU vest (100 shares × $500 FMV) with $150,000 other annual income (flat supplemental method), calculated from our engine (same engine as the RSU vest calculator).

New Jersey is higher by about $260 in state tax alone; net take-home favors California by about $260.

California DE 44: 10.23% flat on bonuses and stock options / RSUs (other supplemental wages use 6.6%).

No published flat supplemental rate (aggregate / table method). Educational estimate ≈10.75% — confirm with payroll tables.

How each state’s rate works

California (CA DE 44 RSU/stock (10.23%)): about 10.23% → $5,115 on the vignette.

New Jersey (Aggregate / table (estimate)): about 10.75% → $5,375 on the vignette.

Official state agencies for this pair only are linked in the sources section — not every state in the hub.

Federal and FICA are the same on this vignette

Both states withhold $11,000 federal income tax under the Pub. 15 flat method (22% on $50,000).

FICA is $2,864 in each (Social Security + Medicare on this YTD/RSU pair). The take-home gap is almost entirely state supplemental withholding.

Above $1M supplemental wages with one employer, federal withholding uses 37% on the excess — still the same rule in both states.

Same RSU vests, different state tax

The ladder recomputes engine results at $15k–$250k RSU vests with $150,000 other annual income.

If either state uses Vermont’s 30%-of-federal rule, Wisconsin bands, or an aggregate proxy, the gap may not scale as a simple constant percentage — check each ladder row.

Signing-RSU negotiations should still include regular wage tax and cost of living — not supplemental withholding alone.

What this comparison excludes

Local city taxes (NYC, Philly wage tax, Ohio municipalities) are not included.

Aggregate-method stubs can differ from the flat-percentage estimates shown here.

Final Form 1040 liability depends on annual brackets, deductions, and credits — withholding is a prepayment.

Who this California vs New Jersey comparison helps

Useful if…

  • •Candidates weighing California vs New Jersey offers with cash RSU vests
  • •Payroll comparing multi-state supplemental setup
  • •Editors quantifying high-tax vs no-tax state gaps

Use official tools if…

  • •Local city taxes (NYC, Philly, Ohio municipalities)
  • •Aggregate-method stubs that differ from flat rates
  • •Year-end true-up if federal 22% under-withholds

California vs New Jersey checklist

Before treating the withholding gap as a job or relocation decision.

  1. 1Confirm California and New Jersey supplemental rules with each revenue department.
  2. 2Ask which withholding method payroll uses (flat vs aggregate).
  3. 3Check the RSU vest ladder for your award size.
  4. 4Open /rsu-tax-by-state/california and /rsu-tax-by-state/new-jersey for full profiles.
  5. 5Run both scenarios in /rsu-tax-calculator.

Vignette net: $31,021 (CA) vs $30,761 (NJ).

What the state gap means

Flat supplemental rates differ by state; federal 22% and FICA rules are the same. Withholding is not your final tax bill when you file.

Limits of this comparison

NYC/local taxes, aggregate-method withholding, and equity vest timing are not modeled. Use the RSU calculator for custom vest amounts and other income.

California vs New Jersey RSU tax FAQs

New Jersey withholds about $260 more in state tax ($5,115 vs $5,375).

No on this vignette — both use the flat 22% federal supplemental method plus the same FICA rules. The gap is almost entirely state supplemental withholding.

California: 10.23%. New Jersey: ~10.75% est..

California, by about $260.

No. This comparison is state supplemental withholding plus federal and FICA only.

Not on this vignette. Both use 22% flat federal supplemental withholding ($11,000) plus the same FICA rules.

Compare another pair

Compare any two states

Supplemental RSU withholding on a $50,000 vest (100×$500) with $150,000 other income.